Water hammer arrester

Details Water hammer arrester Water hammer arrester

1999-05-17

2000-08-01

Hook, James

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 30, F16L 55045

Patent

active

060951958

ABSTRACT:
A water hammer arrester constructed with a cylindrical housing having a closed upper end and an internal pressure chamber. A piston slidably installed within the housing to receive a reaction force medium such as gaseous nitrogen, provides a space that communicates with an integral pressure chamber within the closed upper end of the housing. A threaded connector bearing a nipple circumscribed with a plurality of circumferential grooves is crimped into the neck of the lower end of the housing.

REFERENCES:
patent: 3064686 (1962-11-01), Gratzmuller
patent: 3158180 (1964-11-01), Greer
patent: 3613734 (1971-10-01), Elmer
patent: 4174656 (1979-11-01), Duffey
patent: 4448217 (1984-05-01), Mercier
patent: 4819698 (1989-04-01), Ismert
patent: 4878519 (1989-11-01), Berding et al.
patent: 5219000 (1993-06-01), Chalasani et al.
patent: 5311910 (1994-05-01), Hasegawa et al.
patent: 5385172 (1995-01-01), Perrott et al.

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